/**
 * Copyright 2023 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import {useEffect, useState} from 'react'

const useOnScreen = (ref: any, rootMargin = '0px 0px 0px 0px') => {
  const [onScreen, setOnScreen] = useState<boolean>(false)

  useEffect(() => {
    const observer = new IntersectionObserver(
      ([entry]) => {
        setOnScreen(entry.isIntersecting)
      },
      {
        rootMargin
      }
    )

    observer.observe(ref.current)

    return () => {
      observer.disconnect()
    }
  }, [ref])

  return onScreen
}

export default useOnScreen
